PRELIMINARY
HIGH-SPEED 2.5V 8/4K x 18
SYNCHRONOUS PIPELINED
DUAL-PORT STATIC RAM
.eatures:
x
x
x
IDT70T9359/49L
x
x
x
x
True Dual-Ported memory cells which allow simultaneous
access of the same memory location
High-speed clock to data access
– Commercial:7.5/9/12ns (max.)
– Industrial: 9ns (max.)
Low-power operation
– IDT70T9359/49L
Active: 225mW (typ.)
Standby: 1.5mW (typ.)
Flow-Through or Pipelined output mode on either port via
the
FT/PIPE
pins
Counter enable and reset features
Dual chip enables allow for depth expansion without
additional logic
x
x
x
x
Full synchronous operation on both ports
– 4.0ns setup to clock and 0.5ns hold on all control, data, and
address inputs
– Data input, address, and control registers
– Fast 7.5ns clock to data out in the Pipelined output mode
– Self-timed write allows fast cycle time
– 12ns cycle time, 83MHz operation in Pipelined output mode
Separate upper-byte and lower-byte controls for
multiplexed bus and bus matching compatibility
LVTTL- compatible, single 2.5V (±100mV) power supply
Industrial temperature range (–40°C to +85°C) is
available for 66MHz
Available in a 100-pin Thin Quad Flatpack (TQFP) and 100-
pin fine pitch Ball Grid Array (fpBGA) packages.
.unctional Block Diagram
R/
W
L
UB
L
CE
0L
R/
W
R
UB
R
CE
0R
CE
1L
LB
L
OE
L
1
0
0/1
1
0
0/1
CE
1R
LB
R
OE
R
FT
/PIPE
L
0/1
1b 0b
b a
1a 0a
0a 1a
a
b
0b 1b
0/1
FT
/PIPE
R
I/O
9L
-I/O
17L
I/O
0L
-I/O
8L
I/O
Control
I/O
9R
-I/O
17R
I/O
Control
I/O
0R
-I/O
8R
A
12L
(1)
A
0L
CLK
L
Counter/
Address
Reg.
MEMORY
ARRAY
Counter/
Address
Reg.
A
12R
(1)
A
0R
CLK
R
ADS
L
CNTEN
L
CNTRST
L
ADS
R
CNTEN
R
CNTRST
R
5640 drw 01
NOTE:
1. A
12
is a NC for IDT70T9349.
JULY 2002
1
©2002 Integrated Device Technology, Inc.
DSC-5640/1
IDT70T9359/49L
High-Speed 2.5V 8/4K x 18 Dual-Port Synchronous Pipelined Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Description:
The IDT70T9359/49 is a high-speed 8/4K x 18 bit synchronous
Dual-Port RAM. The memory array utilizes Dual-Port memory cells
to allow simultaneous access of any address from both ports.
Registers on control, data, and address inputs provide minimal setup
and hold times. The timing latitude provided by this approach allows
systems to be designed with very short cycle times.
With an input data register, the IDT70T9359/49 has been optimized
for applications having unidirectional or bidirectional data flow in bursts. An
automatic power down feature, controlled by
CE
0
and CE
1,
permits the
on-chip circuitry of each port to enter a very low standby power mode.
Fabricated using IDT’s CMOS high-performance technology, these
devices typically operate on only 225mW of power.
Pin Configurations
(1,2,3,4)
06/07/02
Index
A
9L
A
10L
A
11L
A
12L
(1)
NC
NC
NC
LB
L
UB
L
CE
0L
CE
1L
CNTRST
L
R/W
L
OE
L
V
DD
FT/PIPE
L
I/O
17L
I/O
16L
V
SS
I/O
15L
I/O
14L
I/O
13L
I/O
12L
I/O
11L
I/O
10L
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
75
2
74
3
73
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
72
71
70
69
68
A
8L
A
7L
A
6L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
CNTEN
L
CLK
L
ADS
L
V
SS
V
SS
ADS
R
CLK
R
CNTEN
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
70T9359/49PF
PN100-1
(5)
100-Pin TQFP
Top View
(6)
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
25
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
A
8R
A
9R
A
10R
A
11R
A
12R
(1)
NC
NC
NC
LB
R
UB
R
CE
0R
CE
1R
CNTRST
R
R/W
R
V
SS
OE
R
FT/PIPE
R
I/O
17R
V
SS
I/O
16R
I/O
15R
I/O
14R
I/O
13R
I/O
12R
I/O
11R
5640 drw 02
NOTES:
1. A
12
is a NC for IDT70T9349.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground supply.
4. Package body is approximately 14mm x 14mm x 1.4mm.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part-marking.
I/O
9L
I/O
8L
V
DD
I/O
7L
I/O
6L
I/O
5L
I/O
4L
I/O
3L
I/O
2L
V
SS
I/O
1L
I/O
0L
V
SS
I/O
0R
I/O
1R
I/O
2R
I/O
3R
I/O
4R
I/O
5R
I/O
6R
V
DD
I/O
7R
I/O
8R
I/O
9R
I/O
10R
.
6.42
2
IDT70T9359/49L
High-Speed 2.5V 8/4K x 18 Dual-Port Synchronous Pipelined Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Pin Configurations (con't.)
(1,2,3,4)
70T9359/49BF
BF100
(5)
100-Pin fpBGA
Top View
(6)
A2
A3
A4
CNTRST
R
0 6/07/02
A1
A5
A6
A7
A8
A9
A10
A
8R
B1
A
11R
B2
UB
R
B3
Vss
B5
Vss
B6
B7
Vss
I/O
13R
I/O
10R
I/O
17R
B8
B9
B10
B4
A
6R
C1
A
7R
C2
A
10R
C3
A
12R(1)
C4
R/W
R
C5
OE
R
PL/FT
R
I/O
12R
I/O
9R
I/O
6R
C6
C7
C8
C9
C10
A
3R
D1
A
4R
D2
A
5R
D3
A
9R
D4
CE
1R
I/O
16R
I/O
15R
I/O
11R
I/O
7R
I/O
3R
D5
D6
D7
D8
D9
D10
A
0R
E1
CLK
R
E2
A
1R
E3
CNTEN
R
F3
A
2R
E4
LB
R
E5
CE
0R
I/O
14R
I/O
8R
E6
E7
E8
I/O
5R
I/O
1R
E9
E10
Vss
F1
ADS
R
F2
A
1L
F4
ADS
L
F5
Vss
F6
I/O
4R
F7
I/O
2R
F8
I/O
0R
F9
V
DD
F10
Vss
G1
CNTEN
L
H1
CLK
L
G2
A
0L
G3
A
3L
G4
V
DD
G5
Vss
G6
V
DD
G7
I/O
2L
G8
I/O
1L
G9
I/O
0L
G10
A
4L
H2
A
7L
H3
UB
L
H4
H5
Vss
I/O
13L
H6
NC
H7
I/O
4L
H8
Vss
H9
I/O
3L
H10
,
A
2L
J1
A
6L
J2
A
11L
J3
CE
0L
J4
CNTRST
L
I/O
15L
I/O
9L
J6
J7
I/O
7L
J8
I/O
6L
J9
I/O
5L
J10
J5
A
5L
K1
A
9L
K2
A
12L(1)
K3
R/W
L
K4
OE
L
PL/FT
L
I/O
12L
I/O
10L
K5
K6
K7
K8
Vss
K9
I/O
8L
K10
A
8L
A
10L
LB
L
CE
1L
V
DD
V
DD
I/O
16L
I/O
14L
I/O
11L
I/O
17L
5 640 drw 03
NOTES:
1. A
12
is a NC for IDT70T9349.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground supply.
4. Package body is approximately 10mm x 10mm x 1.4mm with 0.8mm ball pitch.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part-marking.
6.42
3
IDT70T9359/49L
High-Speed 2.5V 8/4K x 18 Dual-Port Synchronous Pipelined Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Pin Names
Left Port
CE
0L,
CE
1L
R/W
L
OE
L
A
0L
- A
12L
(1)
I/O
0L
- I/O
17L
CLK
L
UB
L
LB
L
ADS
L
CNTEN
L
CNTRST
L
FT/PIPE
L
Right Port
CE
0R,
CE
1R
R/W
R
OE
R
A
0R
- A
12R
(1)
I/O
0R
- I/O
17R
CLK
R
UB
R
LB
R
ADS
R
CNTEN
R
CNTRST
R
FT/PIPE
R
V
DD
Vss
Names
Chip Enables
(3)
Read/Write Enable
Output Enable
Address
Data Input/Output
Clock
Upper Byte Select
(2)
Lower Byte Select
(2)
Address Strobe Enable
Counter Enable
Counter Reset
Flow-Through / Pipeline
Power (2.5V)
Ground (0V)
5640 tbl 01
NOTES:
1. A
12
is a NC for IDT70T9349.
2.
LB
and
UB
are single buffered regardless of state of
FT/PIPE.
3.
CEo
and CE
1
are single buffered when
FT/PIPE
= V
IL
,
CEo
and CE
1
are double buffered when
FT/PIPE
= V
IH
,
i.e. the signals take two cycles to deselect.
Truth Table IRead/Write and Enable Control
(1,2,3)
OE
X
X
X
X
X
X
L
L
L
H
CLK
↑
↑
↑
↑
↑
↑
↑
↑
↑
X
CE
0
(5)
H
X
L
L
L
L
L
L
L
L
CE
1
(5)
X
L
H
H
H
H
H
H
H
H
UB
(4)
X
X
H
L
H
L
L
H
L
X
LB
(4)
X
X
H
H
L
L
H
L
L
X
R/W
X
X
X
L
L
L
H
H
H
X
Upper Byte
I/O
9-17
High-Z
High-Z
High-Z
DATA
IN
High-Z
DATA
IN
DATA
OUT
High-Z
DATA
OUT
High-Z
Lower Byte
I/O
0-8
High-Z
High-Z
High-Z
High-Z
DATA
IN
DATA
IN
High-Z
DATA
OUT
DATA
OUT
High-Z
Deselected–Power Down
Deselected–Power Down
Both Bytes Deselected
Write to Upper Byte Only
Write to Lower Byte Only
Write to Both Bytes
Read Upper Byte Only
Read Lower Byte Only
Read Both Bytes
Outputs Disabled
5640 tbl 02
MODE
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"X" = Don't Care.
2.
ADS, CNTEN, CNTRST
= X.
3.
OE
is an asynchronous input signal.
4.
LB
and
UB
are single buffered regardless of state of
FT/PIPE.
5.
CEo
and CE
1
are single buffered when
FT/PIPE
= V
IL
.
CEo
and CE
1
are double buffered when
FT/PIPE
= V
IH
, i.e. the signals take two cycles to deselect.
6.42
4
IDT70T9359/49L
High-Speed 2.5V 8/4K x 18 Dual-Port Synchronous Pipelined Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Truth Table IIAddress Counter Control
(1,2)
External
Address
An
X
X
X
Previous
Internal
Address
X
An
An + 1
X
Internal
Address
Used
An
An + 1
An + 1
A
0
CLK
↑
↑
↑
↑
ADS
L
(4)
H
H
X
CNTEN
X
L
(5)
H
X
CNTRST
H
H
H
L
(4)
I/O
(3)
D
I/O
(n)
D
I/O
(n+1)
D
I/O
(n+1)
D
I/O
(0)
Exte rnal Ad dre ss Used
Counte r Enable d—Inte rnal Add re ss ge ne ration
E xte rnal Add re ss Blocke d— Counte r d isab le d (An + 1 re used )
Counte r Reset to Ad dress 0
5640 tbl 03
MODE
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"X" = Don't Care.
2.
CE
0
,
LB, UB,
and
OE
= V
IL
; CE
1
and R/W = V
IH
.
3. Outputs configured in Flow-Through Output mode: if outputs are in Pipelined mode the data out will be delayed by one cycle.
4.
ADS
and
CNTRST
are independent of all other signals including
CE
0
, CE
1
,
UB
and
LB.
5. The address counter advances if
CNTEN
= V
IL
on the rising edge of CLK, regardless of all other signals including
CE
0
, CE
1
,
UB
and
LB.
Recommended Operating
Temperature and Supply Voltage
Grade
Commercial
Industrial
Ambient
Temperature
(1)
0
O
C to +70
O
C
-40 C to +85 C
O
O
Recommended DC Operating
Conditions
Symbol
Parameter
Supply Voltage
Ground
Input High Voltage
Input Low Voltage
Min.
2.4
0
1.7
-0.3
(1)
Typ.
2.5
0
____
Max.
2.6
0
V
DD
+0.3V
(2)
0.7
Unit
V
V
V
V
5640 tbl 05
GND
0V
0V
V
DD
V
DD
2.5V
+
100mV
2.5V
+
100mV
5640 tbl 04
V
SS
V
IH
V
IL
NOTES:
1. This is the parameter T
A
. This is the "instant on" case temperature.
____
NOTES:
1. V
IL
> -1.5V for pulse width less than 10 ns.
2. V
TERM
must not exceed V
DD
+0.3V.
Absolute Maximum Ratings
(1)
Symbol
V
TERM
(2)
Capacitance
(1)
Unit
V
Rating
Terminal Voltage
with Respect to
GND
Temperature
Under Bias
Storage
Temperature
DC Output Current
Commercial
& Industrial
-0.5 to +3.6
(T
A
= +25°C, f = 1.0MH
Z
)
Symbol
C
IN
C
OUT
(3)
Parameter
Input Capacitance
Output Capacitance
Conditions
(2)
V
IN
= 3dV
V
OUT
= 3dV
Max.
9
10
Unit
pF
pF
5640 tbl 07
T
BIAS
T
STG
I
OUT
-55 to +125
-65 to +150
50
o
C
C
o
mA
5640 tbl 06
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may
cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated
in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
2. V
TERM
must not exceed V
DD
+ 0.3V for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period of V
TERM
> V
DD
+ 0.3V.
NOTES:
1. These parameters are determined by device characterization, but are not
production tested.
2. 3dV references the interpolated capacitance when the input and output switch
from 0V to 3V or from 3V to 0V.
3. C
OUT
also references C
I/O
.
6.42
5
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